1. Family: Poaceae Barnhart
    1. Stephanachne Keng

      1. This genus is accepted, and its native range is China.

    [GB]

    nonem

    Habit
    Perennial. Rhizomes absent (2), or short (1). Culms erect (2/2); 10-52.56-117 cm long. Ligule an eciliate membrane.
    Inflorescences
    Inflorescence a panicle. Panicle spiciform. Spikelets solitary. Fertile spikelets pedicelled. Pedicels filiform.
    Spikelets
    Spikelets comprising 1 fertile florets; without rhachilla extension (1), or with a barren rhachilla extension (2). Spikelets lanceolate; laterally compressed; 5-9.333-16 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose (2/2).
    Fertile
    Spikelets comprising 1 fertile florets; without rhachilla extension (1), or with a barren rhachilla extension (2). Spikelets lanceolate; laterally compressed; 5-9.333-16 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose (2/2).
    Glume
    Glumes persistent; exceeding apex of florets; parallel to lemmas (2), or gaping (1). Lower glume linear (1), or lanceolate (2); 1 length of upper glume; membranous; without keels; 1-2 -veined (1), or 3 -veined, or 4-5 -veined (2). Lower glume surface smooth (2), or asperulous (1). Lower glume apex acute (1), or acuminate (2). Upper glume linear (1), or lanceolate (2); 1.2-1.641-2.25 length of adjacent fertile lemma; membranous; with undifferentiated margins (2), or hyaline margins (1); without keels; 1-2 -veined (1), or 3 -veined, or 4-5 -veined (1). Upper glume surface smooth (2), or asperulous (1). Upper glume apex acute (1), or acuminate (2).
    Florets
    Fertile lemma ovate; membranous; without keel; 5 -veined. Lemma lateral veins obscure (1/1). Lemma surface pubescent (1), or pilose (2); with a transverse fringe of hair. Lemma apex lobed; 2 -fid; incised 0.25-0.32-0.4 of lemma length; awned; 1 -awned (1), or 3 -awned (2). Principal lemma awn from a sinus; geniculate. Palea 2 -veined. Palea surface glabrous (1), or pilose (2).
    Flowers
    Lodicules 2 (2), or 3 (1). Anthers 1 (1), or 3 (2). Stigmas 2 (2/2). Ovary glabrous (2/2).
    Fruits
    Caryopsis with adherent pericarp (2/2); ellipsoid (1/1). Hilum linear (1/1); 0.9 length of caryopsis.
    Distribution
    Temperate Asia.

    Images

    Distribution

    Native to:

    China North-Central, China South-Central, Qinghai

    Stephanachne Keng appears in other Kew resources:

    First published in Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 9: 134 (1934)

    Sources

    GrassBase - The Online World Grass Flora
    http://creativecommons.org/licenses/by-nc-sa/3.0

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

    Kew Names and Taxonomic Backbone
    The International Plant Names Index and World Checklist of Selected Plant Families 2018. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
    © Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0